FR1047541A - Improvements to signaling circuits - Google Patents

Improvements to signaling circuits

Info

Publication number
FR1047541A
FR1047541A FR1047541DA FR1047541A FR 1047541 A FR1047541 A FR 1047541A FR 1047541D A FR1047541D A FR 1047541DA FR 1047541 A FR1047541 A FR 1047541A
Authority
FR
France
Prior art keywords
signaling circuits
signaling
circuits
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Forges et Ateliers de Constructions Electriques de Jeumont SA
Original Assignee
Forges et Ateliers de Constructions Electriques de Jeumont SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Forges et Ateliers de Constructions Electriques de Jeumont SA filed Critical Forges et Ateliers de Constructions Electriques de Jeumont SA
Application granted granted Critical
Publication of FR1047541A publication Critical patent/FR1047541A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B19/00—Mining-hoist operation
    • B66B19/06—Applications of signalling devices
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
    • E21F17/18—Special adaptations of signalling or alarm devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
FR1047541D 1952-01-05 1952-01-05 Improvements to signaling circuits Expired FR1047541A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1047541T 1952-01-05

Publications (1)

Publication Number Publication Date
FR1047541A true FR1047541A (en) 1953-12-15

Family

ID=9592916

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1047541D Expired FR1047541A (en) 1952-01-05 1952-01-05 Improvements to signaling circuits

Country Status (2)

Country Link
BE (1) BE516388A (en)
FR (1) FR1047541A (en)

Also Published As

Publication number Publication date
BE516388A (en)

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